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Advances in Nano Research Volume 3, Number 1, March 2015 , pages 001-11 DOI: https://doi.org/10.12989/anr.2015.3.1.001 |
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The ethanol sensors made from |
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Vladimir M. Aroutiounian, Valeri M. Arakelyan, Gohar E. Shahnazaryan, Mikayel S. Aleksanyan, Klara Hernadi, Zoltan Nemeth, Peter Berki, Zsuzsanna Papa, Zsolt Toth and Laszlo Forro
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| Abstract | ||
| Thin film ethanol sensors made from a-Fe2O3 decorated with multiwall carbon nanotubes (MWCNTs) were manufactured by the electron beam deposition method. The morphology of the decorated a-Fe2O3/MWCNTs (25:1 weight ratios) nanocomposite powder was investigated using the scanning electron microscopy and X-ray diffraction techniques. The thickness of thin films has been determined from ellipsometric measurements. The response of manufactured sensors was investigated at different temperatures of the sensor work body and concentration of gas vapors. Good response of prepared sensors to ethanol vapors already at work body temperature of 150oC was shown. | ||
| Key Words | ||
| gas sensor; Fe2O3; carbon nanotubes; response; ethanol | ||
| Address | ||
| Vladimir M. Aroutiounian, Valeri M. Arakelyan, Gohar E. Shahnazaryan, Mikayel S. Aleksanyan: Centres of Semiconductor Devices and Nanotechnologies, Yerevan State University, 1 Alek Manookian St., 0025 Yerevan, Armenia Klara Hernadi, Zoltan Nemeth, Peter Berki: Department of Applied and Environmental Chemistry, University of Szeged, Rerrich B. tér 1, Szeged H-6720, Hungary Zsuzsanna Papa, Zsolt Toth: Department of Optics and Quantum Electronics, University of Szeged, Dom tér 9, Szeged H-6720, Hungary Laszlo Forro: Laboratory of Physics of Complex Matter, Ecole Polytechnique Federale de Lausanne, Lausanne, CH-1015, Switzerland | ||